174 J. H. MAIDEN. 



of Gloucester and Durham. It seems, so far as I have seen, 

 to occupy the intermediate country a little back from the 

 coast to near the eastern slopes of the Dividing Range. I 

 do not think it is very plentiful, but small patches of it are 

 occasionally met with, besides isolated trees, and it often 

 associates more or less with the small-fruited Grey Gum, 

 E. propinqua." (The late Augustus Rudder in a letter to 

 the writer, dated 31st August, 1893). 



It grows in company with Ironbark (E. paniculata) and 

 abundance of E. saligna. It is very scarce in the Dungog 

 district (J. L. Boorman). 



A ffinities. 



1. With E. saligna Sm. The similarity of these trees is 

 chiefly in their barks, but the differences between them in 

 this respect have been already stated. Mr. Boorman says 

 that, at Dungog, the direction of the branches in E. canali- 

 culata is more horizontal and the shape less inclined to be 

 pyramidal as in E. saligna. The floral organs and the 

 timber of course sharply separate them. (See Plates 99 

 and 100, Part xxiii, O.R., for E. saligna). 



2. With E. punctata DO. The new species is nearer E. 

 punctata (indeed it has been regarded as a variety of it) 

 than E. saligna, but the discovery that E. canaliculata n.sp. 

 has a pale timber at once showed that it must be removed 

 from E. punctata and other species with red timbers. For 

 drawings of details of E. punctata, see O.R., Part xxix, 

 plates 121 and 122, while that of E. canaliculata n. sp. are 

 in the same Part (as E. punctata var. grandiflora) in plates 

 122 and 123. The anthers of the two species are alike. 

 The outstanding difference shown there is in the smaller 

 size of the buds and fruits of E. punctata, their less 

 tendency to vertical angularity, and less marked com- 

 missural edges. The juvenile leaves are broader in E. 

 punctata. 



